In this testcross: A B / a b X a b / a b what types of gametes are produced in complete linkage?
A) A B, a b, a B and A b
B) A B, a b
C) a B, A b
D) Aa Bb

Coupling vs Repulsion? The following testcross Aa Bb x aa bb produces 10 Aa Bb 40 Aa bb 40 aa Bb 10 aa bb Were the A and B alleles in the Aa Bb parent in coupling or repulsion and why?
Linkage a) how do you determine the types of gametes expected from a double heterozygous individual when there is linkage and when the genes assort independently. b) How do you identify the parental and the recombinant type gametes from data on the frequency of different types of offspring in a testcross and from information about the genotypes of the parents of the double heterozygote. c) How do you calculate the map distance when given testcross results.
For each genotype, give the type or types of gametes produced and the frequencies. a) GG Gg b) aa c) Aa
Modify your model to represent an individual of genotype Aa Cc in which the genes are linked with A and c on one homolog and a and C on the other. 8) Use the model to demonstrate the effect of linkage on the gametes produced in meiosis. What gamete types are expected in highest frequency? Why? What gametes are expected in lower frequency? How are these formed? Diagram the process of meiosis demonstrating how the different gamete...
If the a and b loci are 30 CM apart and an AA BB individual and an aa bb individual mate: What gametes will the F1 individuals produce, and in what proportions? What phenotypic classes in what proportions are expected in the F2 generation (assuming complete dominance for both genes) (show procedure, NO score for direct result)?
Given the Mendelian cross: Aa Bb gg Dd Ee Hh (father) X Aa Bb Gg dd ee Hh(mother). How many gametes are made by the father? How many by the mother? Select one: a. ¾, 1/4 b. 8,8 c. 32, 32 d. 64, 32 e. 32, 16 f. 16, 8
What proportion of offspring from a testcross between a dihybrid and a homozygous recessive.(I.e. A/a;B/b x a/a;b/b) will be genotype A/a;b/b?
a. What is the frequency of
gray, sleek testcross progeny?
b. What is the frequency of pudgy, mean testcross progeny?
c.What is the frequency of gray, friendly testcross progeny?
d. What is the frequency of pudgy, friendly testcross
progeny?
e.What is the frequency of black, friendly testcross
progeny?
f. What is the frequency of black, pudgy, mean testcross
progeny?
g.What is the frequency of gray, sleek, mean testcross
progeny?
h. What is the frequency of gray, pudgy, friendly testcross
progeny?...
Calculate whether loci A&B are in linkage disequilibrium (D) using the following data. Is the haplotype for the loci AB in a coupling or repulsion state? AA = 40 BB = 25 Aa = 25 Bb = 30 aa = 50 bb = 60 hAB = 0.35 hAb = 0.15 haB = 0.15 hab = 0.40
1. a. How many different gametes does a parent with the following genotype produce? Aa BB DD Ee b. How many different genotypes are found among the progeny of the cross listed below? aa bb Dd ee x Aa BB DD Ee c. How many different phenotypes are found among the progeny of the cross listed below? Aa Bb dd Ee x Aa Bb Dd Ee